Mislabeled files, not so much. Since there isn’t really a way to verify the content until it’s downloaded. You can adjust things like which file sizes are considered a certain quality, e.g. HD or 4k. But one approach could be that you define tags for release groups which you know and trust. And give those tags a higher score. This should lead to releases by those groups being preferred.
You can of course add multiple tags with positive and negative scores. For example I use tags to give a higher score to releases that have 5.1 audio, or which are non-hdr.